Organometal halide perovskites (OHPs) exhibit extraordinary properties in the emulation of synaptic plasticity in artificial synaptic electronic devices. However, the instability of OHPs has hindered their further application. Here, a novel two-terminal artificial synapse based on two-dimensional perovskite (R-MPEA) 1.5 PbBr 3.5 (DMSO) 0.5 was developed to address this challenge. Essential biological functions including excitatory post-synaptic current, paired-pulse facilitation, spike-number dependent plasticity, spike-voltage dependent plasticity, spike-duration dependent plasticity, and spike-rate dependent plasticity, have been demonstrated in OHP-based synaptic devices. More importantly, this is the first demonstration of an air-stable OHP-based artificial synapse. The OHP-based synaptic device achieved extremely low energy consumption (∼21 fJ per event) in short-term memory and exhibited good stability at ambient atmosphere over 300 h. These res...

中文翻译：

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空气稳定的二维钙钛矿人造突触

有机金属卤化物钙钛矿（OHP）在仿真人工突触电子设备中的突触可塑性方面显示出非凡的性能。但是，OHP的不稳定性阻碍了它们的进一步应用。在这里，基于二维钙钛矿（R-MPEA）1.5 PbBr 3.5（DMSO）0.5的新型两末端人工突触被开发来解决这一挑战。在基于OHP的突触设备中已证明了基本的生物学功能，包括兴奋性突触后电流，成对脉冲促成，依赖于尖峰数的可塑性，依赖于尖峰电压的可塑性，依赖于尖峰持续时间的可塑性和基于尖峰速率的可塑性。更重要的是，这是基于空气稳定的基于OHP的人工突触的首次演示。基于OHP的突触设备在短期记忆中实现了极低的能耗（每个事件约21 fJ），并且在周围大气中经过300 h表现出良好的稳定性。这些资源...